import P from './plotUtil';

var xp = {
    version: "1.0.0",
    createTime: "2018.6.19",
    author: "xupinhui"
}
var doubleArrowDefualParam = {
    type: "doublearrow",
    headHeightFactor: .25,
    headWidthFactor: .5,
    neckHeightFactor: .85,
    fixPointCount: 4,
    neckWidthFactor: .15
}
var tailedAttackArrowDefualParam = {
    headHeightFactor: .18,
    headWidthFactor: .5,
    neckHeightFactor: .85,
    neckWidthFactor: .15,
    tailWidthFactor: .1,
    headTailFactor: .8,
    swallowTailFactor: 1
};
var fineArrowDefualParam = {
    tailWidthFactor: 0.08,
    neckWidthFactor: 0.20,
    headWidthFactor: 0.25,
    headAngle: Math.PI / 7.5,
    neckAngle: Math.PI / 15
};
xp.algorithm = {},
    xp.algorithm.doubleArrow = function (inputPoint) {
        this.connPoint = null;
        this.tempPoint4 = null;
        this.points = inputPoint;
        var result = {
            controlPoint: null,
            polygonalPoint: null
        };
        //获取已经点击的坐标数
        var tt = inputPoint.length;
        if (!(2 > tt)) {
            if (2 == tt) return inputPoint;
            var o = this.points[0], //第一个点
                e = this.points[1], //第二个点
                r = this.points[2], //第三个点
                t = inputPoint.length; //获取已经点击的坐标数
            //下面的是移动点位后的坐标
            3 == t ? this.tempPoint4 = xp.algorithm.getTempPoint4(o, e, r) : this.tempPoint4 = this.points[3],
                3 == t || 4 == t ? this.connPoint = P.PlotUtils.mid(o, e) : this.connPoint = this.points[4];
            var n, g;
            P.PlotUtils.isClockWise(o, e, r) ? (n = xp.algorithm.getArrowPoints(o, this.connPoint, this.tempPoint4, !1), g = xp.algorithm.getArrowPoints(this.connPoint, e, r, !0)) : (n = xp.algorithm.getArrowPoints(e, this.connPoint, r, !1), g = xp.algorithm.getArrowPoints(this.connPoint, o, this.tempPoint4, !0));
            var i = n.length,
                s = (i - 5) / 2,
                a = n.slice(0, s),
                l = n.slice(s, s + 5),
                u = n.slice(s + 5, i),
                c = g.slice(0, s),
                p = g.slice(s, s + 5),
                h = g.slice(s + 5, i);
            c = P.PlotUtils.getBezierPoints(c);
            var d = P.PlotUtils.getBezierPoints(h.concat(a.slice(1)));
            u = P.PlotUtils.getBezierPoints(u);
            var f = c.concat(p, d, l, u);
            var newArray = xp.algorithm.array2Dto1D(f);
            result.controlPoint = [o, e, r, this.tempPoint4, this.connPoint];
            result.polygonalPoint = Cesium.Cartesian3.fromDegreesArray(newArray);
        }
        return result;
    },
    xp.algorithm.threeArrow = function (inputPoint) {
        this.connPoint = null;
        this.tempPoint4 = null;
        this.tempPoint5 = null;
        this.points = inputPoint;
        var result = {
            controlPoint: null,
            polygonalPoint: null
        };
        //获取已经点击的坐标数
        var tt = inputPoint.length;
        if (tt >= 2) {
            if (tt == 2) {
                return inputPoint;
            }
            var o = this.points[0], //第一个点
                e = this.points[1], //第二个点
                r = this.points[2], //第三个点
                t = inputPoint.length; //获取已经点击的坐标数
            //下面的是移动点位后的坐标
            if (t == 3) {
                this.tempPoint4 = xp.algorithm.getTempPoint4(o, e, r);
                this.tempPoint5 = P.PlotUtils.mid(r, this.tempPoint4);
            } else {
                this.tempPoint4 = this.points[3];
                this.tempPoint5 = this.points[4];
            }
            if (t < 6) {
                this.connPoint = P.PlotUtils.mid(o, e);
            } else {
                this.connPoint = this.points[5];
            }
            var n, g;
            if (P.PlotUtils.isClockWise(o, e, r)) {
                n = xp.algorithm.getArrowPoints(o, this.connPoint, this.tempPoint4, !1);
                g = xp.algorithm.getArrowPoints(this.connPoint, e, r, !0);
            } else {
                n = xp.algorithm.getArrowPoints(e, this.connPoint, r, !1);
                g = xp.algorithm.getArrowPoints(this.connPoint, o, this.tempPoint4, !0);
            }
            var i = n.length,
                s = (i - 5) / 2,
                a = n.slice(0, s),
                l = n.slice(s, s + 5),
                u = n.slice(s + 5, i),
                c = g.slice(0, s),
                p = g.slice(s, s + 5),
                h = g.slice(s + 5, i);
            c = P.PlotUtils.getBezierPoints(c);
            var d = P.PlotUtils.getBezierPoints(h.concat(a.slice(1)));
            u = P.PlotUtils.getBezierPoints(u);
            var f = c.concat(p, d, l, u);
            var newArray = xp.algorithm.array2Dto1D(f);
            result.controlPoint = [o, e, r, this.tempPoint4, this.tempPoint5, this.connPoint];
            result.polygonalPoint = Cesium.Cartesian3.fromDegreesArray(newArray);
        }
        return result;
    },
    xp.algorithm.array2Dto1D = function (array) {
        var newArray = [];
        array.forEach(function (elt) {
            newArray.push(elt[0]);
            newArray.push(elt[1]);
        });
        return newArray;
    },
    xp.algorithm.getArrowPoints = function (t, o, e, r) {
        this.type = doubleArrowDefualParam.type,
            this.headHeightFactor = doubleArrowDefualParam.headHeightFactor,
            this.headWidthFactor = doubleArrowDefualParam.headWidthFactor,
            this.neckHeightFactor = doubleArrowDefualParam.neckHeightFactor,
            this.neckWidthFactor = doubleArrowDefualParam.neckWidthFactor;
        var n = P.PlotUtils.mid(t, o),
            g = P.PlotUtils.distance(n, e),
            i = P.PlotUtils.getThirdPoint(e, n, 0, .3 * g, !0),
            s = P.PlotUtils.getThirdPoint(e, n, 0, .5 * g, !0);
        i = P.PlotUtils.getThirdPoint(n, i, P.Constants.HALF_PI, g / 5, r),
            s = P.PlotUtils.getThirdPoint(n, s, P.Constants.HALF_PI, g / 4, r);
        var a = [n, i, s, e],
            l = xp.algorithm.getArrowHeadPoints(a, this.headHeightFactor, this.headWidthFactor, this.neckHeightFactor, this.neckWidthFactor),
            u = l[0],
            c = l[4],
            p = P.PlotUtils.distance(t, o) / P.PlotUtils.getBaseLength(a) / 2,
            h = xp.algorithm.getArrowBodyPoints(a, u, c, p),
            d = h.length,
            f = h.slice(0, d / 2),
            E = h.slice(d / 2, d);
        return f.push(u),
            E.push(c),
            f = f.reverse(),
            f.push(o),
            E = E.reverse(),
            E.push(t),
            f.reverse().concat(l, E)
    },
    xp.algorithm.getArrowHeadPoints = function (t, o, e) {
        this.type = doubleArrowDefualParam.type,
            this.headHeightFactor = doubleArrowDefualParam.headHeightFactor,
            this.headWidthFactor = doubleArrowDefualParam.headWidthFactor,
            this.neckHeightFactor = doubleArrowDefualParam.neckHeightFactor,
            this.neckWidthFactor = doubleArrowDefualParam.neckWidthFactor;
        var r = P.PlotUtils.getBaseLength(t),
            n = r * this.headHeightFactor,
            g = t[t.length - 1],
            i = (P.PlotUtils.distance(o, e), n * this.headWidthFactor),
            s = n * this.neckWidthFactor,
            a = n * this.neckHeightFactor,
            l = P.PlotUtils.getThirdPoint(t[t.length - 2], g, 0, n, !0),
            u = P.PlotUtils.getThirdPoint(t[t.length - 2], g, 0, a, !0),
            c = P.PlotUtils.getThirdPoint(g, l, P.Constants.HALF_PI, i, !1),
            p = P.PlotUtils.getThirdPoint(g, l, P.Constants.HALF_PI, i, !0),
            h = P.PlotUtils.getThirdPoint(g, u, P.Constants.HALF_PI, s, !1),
            d = P.PlotUtils.getThirdPoint(g, u, P.Constants.HALF_PI, s, !0);
        return [h, c, g, p, d];
    },
    xp.algorithm.getArrowBodyPoints = function (t, o, e, r) {
        for (var n = P.PlotUtils.wholeDistance(t), g = P.PlotUtils.getBaseLength(t), i = g * r, s = P.PlotUtils.distance(o, e), a = (i - s) / 2, l = 0, u = [], c = [], p = 1; p < t.length - 1; p++) {
            var h = P.PlotUtils.getAngleOfThreePoints(t[p - 1], t[p], t[p + 1]) / 2;
            l += P.PlotUtils.distance(t[p - 1], t[p]);
            var d = (i / 2 - l / n * a) / Math.sin(h),
                f = P.PlotUtils.getThirdPoint(t[p - 1], t[p], Math.PI - h, d, !0),
                E = P.PlotUtils.getThirdPoint(t[p - 1], t[p], h, d, !1);
            u.push(f),
                c.push(E)
        }
        return u.concat(c)
    },
    xp.algorithm.getTempPoint4 = function (t, o, e) {
        var r, n, g, i, s = P.PlotUtils.mid(t, o),
            a = P.PlotUtils.distance(s, e),
            l = P.PlotUtils.getAngleOfThreePoints(t, s, e);
        return l < P.Constants.HALF_PI ? (n = a * Math.sin(l), g = a * Math.cos(l), i = P.PlotUtils.getThirdPoint(t, s, P.Constants.HALF_PI, n, !1), r = P.PlotUtils.getThirdPoint(s, i, P.Constants.HALF_PI, g, !0)) : l >= P.Constants.HALF_PI && l < Math.PI ? (n = a * Math.sin(Math.PI - l), g = a * Math.cos(Math.PI - l), i = P.PlotUtils.getThirdPoint(t, s, P.Constants.HALF_PI, n, !1), r = P.PlotUtils.getThirdPoint(s, i, P.Constants.HALF_PI, g, !1)) : l >= Math.PI && l < 1.5 * Math.PI ? (n = a * Math.sin(l - Math.PI), g = a * Math.cos(l - Math.PI), i = P.PlotUtils.getThirdPoint(t, s, P.Constants.HALF_PI, n, !0), r = P.PlotUtils.getThirdPoint(s, i, P.Constants.HALF_PI, g, !0)) : (n = a * Math.sin(2 * Math.PI - l), g = a * Math.cos(2 * Math.PI - l), i = P.PlotUtils.getThirdPoint(t, s, P.Constants.HALF_PI, n, !0), r = P.PlotUtils.getThirdPoint(s, i, P.Constants.HALF_PI, g, !1)),
            r
    },
    xp.algorithm.tailedAttackArrow = function (inputPoint) {
        inputPoint = xp.algorithm.dereplication(inputPoint);
        this.tailWidthFactor = tailedAttackArrowDefualParam.tailWidthFactor;
        this.swallowTailFactor = tailedAttackArrowDefualParam.swallowTailFactor;
        this.swallowTailPnt = tailedAttackArrowDefualParam.swallowTailPnt;
        //控制点
        var result = {
            controlPoint: null,
            polygonalPoint: null
        };
        result.controlPoint = inputPoint;
        var tt = inputPoint.length;
        if (!(2 > tt)) {
            if (2 == tt) {
                result.polygonalPoint = inputPoint;
                return result;
            }
            var o = inputPoint,
                e = o[0],
                r = o[1];
            P.PlotUtils.isClockWise(o[0], o[1], o[2]) && (e = o[1], r = o[0]);
            var n = P.PlotUtils.mid(e, r),
                g = [n].concat(o.slice(2)),
                i = xp.algorithm.getAttackArrowHeadPoints(g, e, r, tailedAttackArrowDefualParam),
                s = i[0],
                a = i[4],
                l = P.PlotUtils.distance(e, r),
                u = P.PlotUtils.getBaseLength(g),
                c = u * this.tailWidthFactor * this.swallowTailFactor;
            this.swallowTailPnt = P.PlotUtils.getThirdPoint(g[1], g[0], 0, c, !0);
            var p = l / u,
                h = xp.algorithm.getAttackArrowBodyPoints(g, s, a, p),
                t = h.length,
                d = [e].concat(h.slice(0, t / 2));
            d.push(s);
            var f = [r].concat(h.slice(t / 2, t));
            var newArray = [];
            f.push(a),
                d = P.PlotUtils.getQBSplinePoints(d),
                f = P.PlotUtils.getQBSplinePoints(f),
                newArray = xp.algorithm.array2Dto1D(d.concat(i, f.reverse(), [this.swallowTailPnt, d[0]]));
            result.polygonalPoint = Cesium.Cartesian3.fromDegreesArray(newArray);
        }
        return result;
    },
    xp.algorithm.getAttackArrowHeadPoints = function (t, o, e, defaultParam) {
        this.headHeightFactor = defaultParam.headHeightFactor;
        this.headTailFactor = defaultParam.headTailFactor;
        this.headWidthFactor = defaultParam.headWidthFactor;
        this.neckWidthFactor = defaultParam.neckWidthFactor;
        this.neckHeightFactor = defaultParam.neckHeightFactor;
        var r = P.PlotUtils.getBaseLength(t),
            n = r * this.headHeightFactor,
            g = t[t.length - 1];
        r = P.PlotUtils.distance(g, t[t.length - 2]);
        var i = P.PlotUtils.distance(o, e);
        n > i * this.headTailFactor && (n = i * this.headTailFactor);
        var s = n * this.headWidthFactor,
            a = n * this.neckWidthFactor;
        n = n > r ? r : n;
        var l = n * this.neckHeightFactor,
            u = P.PlotUtils.getThirdPoint(t[t.length - 2], g, 0, n, !0),
            c = P.PlotUtils.getThirdPoint(t[t.length - 2], g, 0, l, !0),
            p = P.PlotUtils.getThirdPoint(g, u, P.Constants.HALF_PI, s, !1),
            h = P.PlotUtils.getThirdPoint(g, u, P.Constants.HALF_PI, s, !0),
            d = P.PlotUtils.getThirdPoint(g, c, P.Constants.HALF_PI, a, !1),
            f = P.PlotUtils.getThirdPoint(g, c, P.Constants.HALF_PI, a, !0);
        return [d, p, g, h, f]
    },
    xp.algorithm.getAttackArrowBodyPoints = function (t, o, e, r) {
        for (var n = P.PlotUtils.wholeDistance(t), g = P.PlotUtils.getBaseLength(t), i = g * r, s = P.PlotUtils.distance(o, e), a = (i - s) / 2, l = 0, u = [], c = [], p = 1; p < t.length - 1; p++) {
            var h = P.PlotUtils.getAngleOfThreePoints(t[p - 1], t[p], t[p + 1]) / 2;
            l += P.PlotUtils.distance(t[p - 1], t[p]);
            var d = (i / 2 - l / n * a) / Math.sin(h),
                f = P.PlotUtils.getThirdPoint(t[p - 1], t[p], Math.PI - h, d, !0),
                E = P.PlotUtils.getThirdPoint(t[p - 1], t[p], h, d, !1);
            u.push(f),
                c.push(E)
        }
        return u.concat(c)
    },
    xp.algorithm.dereplication = function (array) {
        var last = array[array.length - 1];
        var change = false;
        var newArray = [];
        newArray = array.filter(function (i) {
            if (i[0] != last[0] && i[1] != last[1]) {
                return i;
            }
            change = true;
        });
        if (change) newArray.push(last);
        return newArray;
    },
    xp.algorithm.fineArrow = function (tailPoint, headerPoint) {
        if ((tailPoint.length < 2) || (headerPoint.length < 2)) return;
        //画箭头的函数
        let tailWidthFactor = fineArrowDefualParam.tailWidthFactor;
        let neckWidthFactor = fineArrowDefualParam.neckWidthFactor;
        let headWidthFactor = fineArrowDefualParam.headWidthFactor;
        let headAngle = fineArrowDefualParam.headAngle;
        let neckAngle = fineArrowDefualParam.neckAngle;
        var o = [];
        o[0] = tailPoint;
        o[1] = headerPoint;
        var e = o[0],
            r = o[1],
            n = P.PlotUtils.getBaseLength(o),
            g = n * tailWidthFactor,
            //尾部宽度因子
            i = n * neckWidthFactor,
            //脖子宽度银子
            s = n * headWidthFactor,
            //头部宽度因子
            a = P.PlotUtils.getThirdPoint(r, e, P.Constants.HALF_PI, g, !0),
            l = P.PlotUtils.getThirdPoint(r, e, P.Constants.HALF_PI, g, !1),
            u = P.PlotUtils.getThirdPoint(e, r, headAngle, s, !1),
            c = P.PlotUtils.getThirdPoint(e, r, headAngle, s, !0),
            p = P.PlotUtils.getThirdPoint(e, r, neckAngle, i, !1),
            h = P.PlotUtils.getThirdPoint(e, r, neckAngle, i, !0),
            d = [];
        d.push(a[0], a[1], p[0], p[1], u[0], u[1], r[0], r[1], c[0], c[1], h[0], h[1], l[0], l[1], e[0], e[1]);
        return Cesium.Cartesian3.fromDegreesArray(d);
    }

export default xp;